Canonical all-time low for Half-Life: Opposing Force: $0.99
Half-Life: Opposing Force is currently $4.99, with a canonical all-time low of $0.99. Check the ThereAny Score on the detail page for timing.
Original Price
$4.99
Current Price
$4.99
Lowest Price
$0.99
Jun 25, 2026
Price history and canonical ATL: IsThereAnyDeal (ITAD). CheapShark remains an optional browser-direct fallback for some US storefront views.